1. Sulfoaluminates of Calcium;Lerch;Jour. of Res. of the National Bureau of Standards,1929
2. Proceedings of the Symposium on the Chemistry of Cements;Forsen,1938
3. Sulfoaluminated of Calcium as Stable and Metastable Phases;Kalousek,1941
4. The Microstructure of Hydrated Supersulfated Cement;Midgley;Cement and Concrete Res.,1971